Severe Weather and Heavy Rainfall in the Ohio Valley; Heat Continuing in the South and Southeast

Severe thunderstorms with damaging wind gusts will be possible from the mid-Mississippi Valley into parts of the Ohio Valley and central Appalachians tonight. Heavy rain associated with these storms may lead to considerable flash and urban flooding impacts across portions of the Ohio Valley. Mid-summer heat persists from the Central Plains to the Southeast. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Waterloo, Waterloo Municipal Airport (KALO)

Lat: 42.55°NLon: 92.4°WElev: 873ft.

Fog/Mist

75°F

24°C

Humidity	96%
Wind Speed	E 5 mph
Barometer	29.79 in (1007.9 mb)
Dewpoint	74°F (23°C)
Visibility	5.00 mi
Last update	12 Aug 2:54 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Waterloo IA

Overnight
Low: 70 °F
Slight Chance
T-storms
Wednesday
High: 84 °F
Heavy Rain
then Partly
Sunny
Wednesday Night
Low: 68 °F
Partly Cloudy
then Chance
T-storms
Thursday
High: 79 °F
Showers then
Showers
Likely
Thursday Night
Low: 66 °F
Chance
Showers
Friday
High: 79 °F
Chance
Showers
Friday Night
Low: 68 °F
Chance
T-storms then
Showers
Likely
Saturday
High: 84 °F
Chance
T-storms
Saturday Night
Low: 68 °F
Showers
Likely

Detailed Forecast

Overnight

A 20 percent chance of showers and thunderstorms before 4am. Mostly cloudy, with a low around 70. Northeast wind 3 to 5 mph.

Wednesday

Showers and thunderstorms likely, mainly before 10am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 84. East wind 6 to 9 mph becoming south southwest in the morning. Chance of precipitation is 60%. New precipitation amounts between a half and three quarters of an inch possible.

Wednesday Night

A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 68. East wind around 5 mph. New rainfall amounts between a quarter and half of an inch possible.

Thursday

Showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. High near 79. Northeast wind 5 to 7 mph becoming east southeast in the morning. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Thursday Night

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66. East northeast wind 6 to 8 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday

A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 79. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 70%.

Saturday

A 50 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 84.

Saturday Night

Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

Sunday

Mostly cloudy, with a high near 79.

Sunday Night

Partly cloudy, with a low around 62.

Monday

Mostly sunny, with a high near 77.

Monday Night

Partly cloudy, with a low around 61.

Tuesday

Partly sunny, with a high near 79.